Jdeveloper 12.2.1.4 Java Version -

"JDeveloper keeps the JDK aligned with the support provided by WebLogic—which currently (and also in the 12.2.1.4 release) is JDK8. Future versions will likely pick up newer JDKs."

Mixing JDeveloper on JDK 8 with a remote WLS on JDK 11 will cause deployment failures due to server-side JAXB and CDI mismatches.

Oracle JDeveloper 12.2.1.4 is the final and most stable release of the 12c family. Because JDeveloper is an Integrated Development Environment (IDE) that also includes an embedded WebLogic Server, matching it with the correct Java Development Kit (JDK) version is critical for stability, performance, and successful deployment. jdeveloper 12.2.1.4 java version

Managing the Java environments for JDeveloper 12.2.1.4 requires close attention to the version runtime, specific configuration adjustments, and underlying system requirements. 📋 Comprehensive Compatibility Matrix

While not officially supported, some developers have found success running JDeveloper 12.2.1.4 with a later JDK (such as Java 11) for the IDE itself. This requires careful configuration of the jdev.conf file to point to the Java 11 installation. However, a critical caveat applies: "JDeveloper keeps the JDK aligned with the support

This command will display the version of Java currently installed and configured in your system path. The output should indicate a JDK 8 version (e.g., 1.8.0_xxx).

64-bit (x64) is strictly required for modern Windows and Linux environments. This requires careful configuration of the jdev

For a stable and productive experience with JDeveloper 12.2.1.4, is the only supported and recommended choice. Using higher versions for the IDE itself can cause environment conflicts, whereas adhering to JDK 8 ensures compatibility with Oracle ADF and Fusion Middleware technologies. If you'd like to dive deeper, I can provide:

Running this product is supported with a minimum Java version of 1.8 and a maximum version less than 1.9. Use code with caution.